Apparatus for the production of plastic pipes

Details Apparatus for the production of plastic pipes Apparatus for the production of plastic pipes

1991-07-08

1992-08-25

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Sets of press couples comprising registering female mold...

4253261, 425336, 425388, 425396, 425DIG60, B29C 4938, B29C 5136

Patent

active

051414279

ABSTRACT:
Pipes with special profile sections are produced by an apparatus with circuit guided half shells. The half shells combining to form a mold have mold walls extending about parallel to a mold space axis. Vacuum slits extend about parallel to the mold space axis to open into a mold space in each case at a place radially the most distant from the mold space axis.

REFERENCES:
patent: 4199314 (1980-04-01), Lupke et al.
patent: 4381276 (1983-04-01), Hegler et al.
patent: 4492551 (1985-01-01), Hegler et al.
patent: 4718844 (1988-01-01), Dickhut et al.
patent: 5059109 (1991-10-01), Dickhut et la.

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